DBM is a colorless liquid with a characteristic "ester" odor. It is used as a comonomer in vinyl and acrylic emulsion polymerization for paints and adhesives. DBM is also a suitable intermediate for use in organic synthesis, e.g. in the production of derivatives of succinic acid. Maleic acid dibutyl ester (DBM) is a clear, virtually colorless liquid with an ester-like odor. It is miscible for example with methanol, ethanol, acetone, diethyl ether, N,N-dimethyl formamide and toluene, immiscible with aliphatic hydrocarbons and slightly miscible with water. DBM contains about 1-5% fumaric acid dialkyl ester and 1-2% alkoxysuccinic acid dialkyl ester. Under the action of heat and in the presence of acids or bases, DBM transposes into fumaric acid dialkyl ester. DBM / DOM is a suitable intermediate for use in the production of paints and adhesives, copolymers and films. DBM / DOM permits the addition reactions normally possible with compounds having olefinic double bonds and is suitable, for example, as a dienophile for diene syntheses using the Diels-Alder reaction. By hydrogenation or acetylation, valuable intermediates can be obtained, e. g. succinic acid dimethyl ester and other derivatives of succinic acid, which are employed in many different areas of organic synthesis.

Local: Dibutyl Maleate is used as an additive and intermediate for plastics, pigments, pharmaceuticals, and agricultural Products. Dibutyl Maleate is an intermediate for the production of paints, adhesives and copolymers. It is used in many organic synthesis including as a dienophile for diene syntheses.

APPLICATION : Dibutyl Maleate (DBM) is a plasticizer for vinyl resins, and is used for copolymers applications involving PVC and vinyl acetates. Dibutyl Maleate is an unsaturated ester which is used for creating sulfosuccinate surfactants in detergents and paints. Other applications of DBM include use in plastisols, dispersions, coatings, adhesives, and synthetic lubricants.

PACKAGING : This product is available in 55 gallon drums. Please ask about custom packaging.

Use: Maleates have a variety of molecular weights, which have found use as an additive and intermediate in the synthesis of other organic compounds, including resins and surfactants; they have been used in emulsion copolymerization reactions with vinyl acetate to product a paint base compound as internal plasticizers and in the manufacture of sulfosuccinates which are powerful wetting agents for detergent applications.

Product Application: Dibutyl Maleate / DBM extensively used as an interior plasticizer,may be copolymerized with monomers like vinyl chloride, vinyl acetate,styrene,etc. These copolymers are usually used in preparing coatings,films,adhesives,rubbers and fixing agent for pigments. When it used for the PVC ware,it can make ware soft,lucency,high transparence. Due to its strong solublizing property,it may effectively plasticize polyacrylonitrile,polymethyl acrylates,which are difficult to be plasticized by other plasticizers.

Packing & Storage: 200L iron drum or plastic drum,200 kg for net weight, or according customer demand, and stored in a cool and dry place to avoid sunshine and rain.

SPECIFICATION

Appearance: Colourless,transparent oily liquid

Color(Pt-Co): ≤ 50#

Content,%: ≥ 97.0

Acidity (mgKOH/g ),%: ≤ 0.15

Density(20℃),g/cm3: 0.995±0.002

Flash point,℃: ≥130

Trans content(GC),%: ≤ 2.0

Molecular Weight: 228.28 g/mol

XLogP3-AA: 2.7

Hydrogen Bond Donor Count: 0

Hydrogen Bond Acceptor Count: 4

Rotatable Bond Count: 10

Exact Mass: 228.136159 g/mol

Monoisotopic Mass: 228.136159 g/mol

Topological Polar Surface Area: 52.6 A^2

Heavy Atom Count: 16

Formal Charge: 0

Complexity: 209

Isotope Atom Count: 0

Defined Atom Stereocenter Count: 0

Undefined Atom Stereocenter Count: 0

Defined Bond Stereocenter Count: 1

Undefined Bond Stereocenter Count: 0

Covalently-Bonded Unit Count: 1

Compound Is Canonicalized: Yes

Assay: 96.00 to 100.00

Food Chemicals Codex Listed: No

Specific Gravity:: 0.99500 to 0.99800 @ 20.00 °C.

Pounds per Gallon - (est).: 8.289 to 8.314

Refractive Index: 1.44300 to 1.44700 @ 20.00 °C.

Melting Point: -85.00 °C. @ 760.00 mm Hg

Boiling Point: 281.00 °C. @ 760.00 mm Hg

Vapor Pressure: 0.000620 mmHg @ 25.00 °C.

Flash Point: 280.00 °F. TCC ( 138.00 °C. )

logP (o/w): 3.487 (est)

Soluble in: alcohol, water 500 mg/L @ 25 °C (exp)

Insoluble in: water

Maleic acid dibutyl ester is a chemical compound in the group of carboxylic acid esters.Maleic acid dibutyl ester can be prepared by the reaction of maleic acid anhydride and 1-butanol in presence of p-toluenesulfonic acid.Maleic acid dibutyl ester is a flammable, hard to ignite, oily, colorless to yellowish liquid with a characteristic odor, which has very low solubility in water.Maleic acid dibutyl ester is mainly used as a plasticizer for aqueous dispersions of copolymers with vinyl acetate and as an intermediate in the preparation of other chemical compounds. DBM is a colorless liquid with a characteristic "ester" odor. It is used as a comonomer in vinyl and acrylic emulsion polymerization for paints and adhesives. DBM is also a suitable intermediate for use in organic synthesis, e.g. in the production of derivatives of succinic acid. Maleic acid dibutyl ester (DBM) is a clear, virtually colorless liquid with an ester-like odor. It is miscible for example with methanol, ethanol, acetone, diethyl ether, N,N-dimethyl formamide and toluene, immiscible with aliphatic hydrocarbons and slightly miscible with water. DBM contains about 1-5% fumaric acid dialkyl ester and 1-2% alkoxysuccinic acid dialkyl ester. Under the action of heat and in the presence of acids or bases, DBM transposes into fumaric acid dialkyl ester. DBM / DOM is a suitable intermediate for use in the production of paints and adhesives, copolymers and films. DBM / DOM permits the addition reactions normally possible with compounds having olefinic double bonds and is suitable, for example, as a dienophile for diene syntheses using the Diels-Alder reaction. By hydrogenation or acetylation, valuable intermediates can be obtained, e. g. succinic acid dimethyl ester and other derivatives of succinic acid, which are employed in many different areas of organic synthesis. Dibutyl Maleate is used as an additive and intermediate for plastics, pigments, pharmaceuticals, and agricultural Products. Dibutyl Maleate is an intermediate for the production of paints, adhesives and copolymers. It is used in many organic synthesis including as a dienophile for diene syntheses. Dibutyl Maleate (DBM) is a colorless, liquid plasticizer for vinyl resins, and is used for copolymers applications involving PVC and vinyl acetates. Dibutyl Maleate is an unsaturated ester which is used for creating sulfosuccinate surfactants in detergents and paints. Dubutyl Maleate is also used as a comonomer in paints and adhesives for vinyl and acrylic emulsion polymerization. Other applications of DBM include use in plastisols, dispersions, coatings, adhesives, and synthetic lubricants. This product is available in 55 gallon drums. Please ask about custom packaging. Dibutyl Maleate (DBM) is also known as Maleic Acid or Dibutylester. It is a colorless, oily and liquid substance. It has a characteristic ester-like odor. Dibutyl Maleate is insoluble in water and is considered combustible. DBM is commonly used in the paint industry as a comonomer in vinyl and acrylic emulsion polymerization for various adhesives and paints. It is also used as an intermediate in organic synthesis, for example in the production of derivatives of succinic acid. Another common application is its use as a plasticizer in water resistant films. We have helped multiple customers, from small end users to large Fortune 500 customers, with their Dibutyl Maleate supply requirements and can ship bulk and various packaged products to meet such needs. In an industrial setting, dibutyl maleate is synthesized via chemical esterification of n-butanol and maleic acid. Based on the expected metabolism of diesters, butyl hydrogen maleate, maleic acid, maleic anhydride and n-butanol were selected as the most suitable read-across substances for DBM, as they represent metabolic/chemical breakdown products of DBM. Butyl hydrogen maleate is the initial product resulting from the action of esterases in vivo, and can also result from chemical hydrolysis under certain conditions. Butyl hydrogen maleate retains one ester moiety, and re-introduces one of the carboxylic acid moieties that were present in the raw material. Maleic acid results from the complete de-esterification and/or chemical hydrolysis of DBM. Although hydrolysis of DBM (either enzymatic or non-enzymatic) most likely results in the formation of maleic acid as a metabolite, maleic anhydride was included as a potential read-across candidate because of its high reactivity with water, which means that it is rapidly converted to maleic acid in biological systems. Comparing the target organ and adverse effects of DBM, butyl hydrogen maleate, and maleic anhydride/maleic acid shows that all four substances cause similar adverse effects in the kidneys (i.e. the same pattern of toxicological activity), which corroborates the presence of similar functional groups, which then further supports use of these substances as read across substances because they fulfill the criterion "The similarities may be based on: [...] (2) [...] or the likelihood of common breakdown products via physical and biological processes, which result in structurally similar chemicals; Following the progressive hydrolysis of DBM to its parent constituents, reproductive effects, if present, would most likely be related to the maleic acid anion. This is also corroborated by the fact that the remaining metabolite, n-butanol, does not reveal any adverse effects on reproduction and development (Nelson et al., 1989; Ema et al., 2005). Similar read across evaluations were conducted by U.S. EPA HPV for the diesters category (U.S. EPA, 2008; 2006a) and by EFSA (2012) for the evaluation of flavouring substances including mono- and diesters as it was summarized by the Panel: "mono- and diesters included in the present FGE are expected to undergo hydrolysis in humans to yield their corresponding alcohol (linear or branched-chain aliphatic alcohols) and acid components (i.e. alpha-, beta- or gamma-keto or hydroxy acids; or simple aliphatic acids, diacids or triacids), which would be further metabolized and excreted."....."The majority of degradation products yielded from the candidate ester hydrolysis are endogenous in mammals and are known to be completely metabolised, through different reactions, depending on their chain length and degree of branching and functional groups." It is likely that multiple metabolic reactions will occur for some hydrolysis products. The most probable metabolic reactions are the following:

-Oxidation of alcohol to aldehydes and acids

-Conjugation of alcohols and acids to glucuronides and sulphates

-Beta-oxidation of carboxylic acids

-Omega-oxidation of carboxylic acids

Therefore, DBM, as a diester from a linear aliphatic alcohol and a dicarboxylic acid, is expected to follow a similar breakdown and excretion pattern, producing the corresponding alcohol and acid. This assumption is supported by performing a metabolism/hydrolysis simulation using QSAR. The predicted metabolites of maleic acid, butyl hydrogen maleate and n-butanol were in agreement with the results starting with the substance of record, DBM, the dibutyl ester of maleic acid. Comparing the effects of DBM, butyl hydrogen maleate, and maleic anhydride/maleic acid shows that all substances cause similar renal effects (i.e. the same pattern of toxicological activity) and can thus be used as read across substances because they fulfil the criterion "The similarities may be based on: [...] (2) [...] or the likelihood of common breakdown products via physical and biological processes, which result in structurally similar chemicals;" (REACH Annex XI, Section 1.5.) Maleic anhydride can be regarded as suitable for read across, but shows no developmental effects. Thus, it can be concluded that the same predicted outcome would be expected for DBM. In the case of DBM and butyl hydrogen maleate, reproductive effects, if any, would be related to the maleic acid anion, which is the core structure for DBM, butyl hydrogen maleate, and maleic anhydride. The corresponding linear alcohol n-butanol does not reveal any adverse effects on reproduction and development (Nelson et al., 1989; Ema et al., 2005). Studies conducted with maleic anhydride showed that no adverse reproductive or teratological effects are induced by the maleic anion. Therefore, it is justified to use data from the dossier for maleic anhydride for read-across to DBM. In summary, because of the systemic toxicity observed in the kidneys with substances with similar chemical core structure such as DBM, butyl hydrogen maleate, and maleic anhydride/maleic acid, in repeated dose studies from 2 to 13 weeks in rats, it is concluded that this group of substances behaves similarly due to the presence of the same maleic acid chemical core structure. More importantly, the lack of developmental and reproductive toxicity in multi-generation studies with maleic anhydride/maleic acid studies allows the conclusion that there is no reason to expect any adverse developmental and/or reproductive effects in rats expose to DBM except when severe maternal toxicity occurs. The use of toxicity data from maleic anhydride/maleic acid and butyl hydrogen maleate is justified for this read across evaluation.